关键词: 华北平原, 通量贡献区, 冬小麦农田生态系统, 涡度相关系统

Abstract: Annual herbivory and its monthly variation in southern subtropical evergreen broad-leaved forest in Heishiding Natural Reserve are studied. The annual herbivory is 0.217 t·ha^-1, i.e., 16.98％ of leaf biomass or 7.03％ of leaf area. About half of the foliage is more or less grazed. The consumed leaf is about 15％ of leaf grazed. Monthly variation of the herbivory shows that higher consuption percentage occurred from August to November(December), and lower one, from March to June. Different species of leaves show different sensitivity to herbivory. Small, harder and hairy leaves are less grazed, but thinner ones are generally consumed. Insects have some specificity to consume leaves.

Key words: Biomass, Southern subtropical evergreen broad-leaved forest, Herbivory, winter wheat farmland ecosystem, the North China Plain, flux footprint, eddy covariance system